Arditti was born in Geneva in 1979 of Italian and Turkish Jewish Sephardic descent, and grew up in Istanbul and moved to London in 1999.
He began his TV and film career in some of British television's most popular series including Casualty, Spooks and Silent Witness.
In 2014 he appeared in the BBC/Sundance TV drama The Honourable Woman directed by Hugo Blick opposite Maggie Gyllenhaal where he played Saleh Al-Zahid.
On the stage Arditti played Yossarian, the New York bomb aimer, in Joseph Heller's stage adaptation of his novel Catch-22 on a UK national tour directed by Rachel Chavkin.He is a regular performer at London's National Theatre, including roles in England People Very Nice (2009), Blood and Gifts (2010), Holy Rosenbergs (2011).
Rogers's stage play Oslo at the venue's Lyttelton auditorium, accompanying the production when it transferred to the West End in the following month.